基于MLD-MPC的快速路出口與輔路協(xié)調(diào)控制
發(fā)布時(shí)間：2018-08-14 09:09
【摘要】：城市交通信號(hào)控制系統(tǒng)是典型的混雜控制系統(tǒng)。針對(duì)當(dāng)前大中城市普遍存在的快速路出口匝道、輔路及下游交叉口的信號(hào)協(xié)調(diào)控制問(wèn)題,研究了一種多信號(hào)自適應(yīng)控制方法,以保證出口匝道排隊(duì)長(zhǎng)度較小且下游交叉口排隊(duì)不溢流。首先,基于車道路段當(dāng)量排隊(duì)長(zhǎng)度建立狀態(tài)方程,分別選取出口匝道、輔路交叉口和下游交叉口排隊(duì)長(zhǎng)度為連續(xù)狀態(tài)變量,信號(hào)燈切換信號(hào)為離散控制變量;其次,以有限排隊(duì)長(zhǎng)度為模型約束,建立了包含快速路出口匝道、輔路及下游交叉口排隊(duì)長(zhǎng)度和信號(hào)狀態(tài)的混合邏輯動(dòng)態(tài)MLD模型;然后,比較研究了快速路出口匝道有信號(hào)燈控、無(wú)信號(hào)燈控兩種不同情況下的MPC模型預(yù)測(cè)控制方法。仿真結(jié)果表明,基于MLD-MPC的控制方法可解決快速路出口匝道與輔路及下游交叉口的多交叉口信號(hào)協(xié)調(diào)控制問(wèn)題。
[Abstract]:Urban traffic signal control system is a typical hybrid control system. Aiming at the problem of signal coordination control of exit ramps, auxiliary roads and downstream intersections in large and medium-sized cities, a multi-signal adaptive control method is studied. In order to ensure that the exit ramp queue length is small and the downstream intersection queue does not overflow. Firstly, based on the equivalent queue length of lane section, the state equation is established, and the queue length of exit ramp, auxiliary road intersection and downstream intersection is selected as continuous state variable, and the signal switching signal is discrete control variable. Taking finite queue length as model constraint, a hybrid logic dynamic MLD model including the queue length and signal state of expressway exit ramp, auxiliary road and downstream intersection is established, and then the signal lamp control of expressway exit ramp is compared. The predictive control method of MPC model in two different cases without signal lamp control. The simulation results show that the control method based on MLD-MPC can solve the problem of signal coordination between the exit ramp of expressway and the auxiliary and downstream intersections.
【作者單位】： 北方工業(yè)大學(xué)自動(dòng)化系;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(61174116) 國(guó)家863高技術(shù)研究計(jì)劃(2012AA112401) 北京市教委科研計(jì)劃項(xiàng)目(PXM2013_014212_000031,000029,000028,KM20111009011) 北京市屬高等學(xué)校高層次人才引進(jìn)與培養(yǎng)計(jì)劃項(xiàng)目(CIT&TCD201304002)
【分類號(hào)】：U491.54;TP273
，
本文編號(hào)：2182378
[Abstract]:Urban traffic signal control system is a typical hybrid control system. Aiming at the problem of signal coordination control of exit ramps, auxiliary roads and downstream intersections in large and medium-sized cities, a multi-signal adaptive control method is studied. In order to ensure that the exit ramp queue length is small and the downstream intersection queue does not overflow. Firstly, based on the equivalent queue length of lane section, the state equation is established, and the queue length of exit ramp, auxiliary road intersection and downstream intersection is selected as continuous state variable, and the signal switching signal is discrete control variable. Taking finite queue length as model constraint, a hybrid logic dynamic MLD model including the queue length and signal state of expressway exit ramp, auxiliary road and downstream intersection is established, and then the signal lamp control of expressway exit ramp is compared. The predictive control method of MPC model in two different cases without signal lamp control. The simulation results show that the control method based on MLD-MPC can solve the problem of signal coordination between the exit ramp of expressway and the auxiliary and downstream intersections.
【作者單位】： 北方工業(yè)大學(xué)自動(dòng)化系;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(61174116) 國(guó)家863高技術(shù)研究計(jì)劃(2012AA112401) 北京市教委科研計(jì)劃項(xiàng)目(PXM2013_014212_000031,000029,000028,KM20111009011) 北京市屬高等學(xué)校高層次人才引進(jìn)與培養(yǎng)計(jì)劃項(xiàng)目(CIT&TCD201304002)
【分類號(hào)】：U491.54;TP273
，
本文編號(hào)：2182378
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